
#include<stdio.h>
void Swap(int*pa, int*pb)
{
	int tmp =*pa;
	*pa =*pb;
	*pb = tmp;
}

int main()
{

	int a = 0;
	int b = 0;
	
	scanf("%d %d", &a,&b);
	Swap(&a, &b);
	printf("%d %d\n", a, b);
	return 0;
}